World at War Finish:Nonfoil Spells you cast cost {1}

Spells you cast cost {1} less to cast for each card type they share with cards exiled with this creature

Exile Time Spiral

except it has haste

choose up to one target creature spell or planeswalker spell

Companion — Your starting deck contains at least twenty cards more than the minimum deck size

World at War Finish:Nonfoil Spells you cast cost {1}After the second main phase this turn, there's an additional combat phase followed by an additional main phase. At the beginning of that combat, untap all creatures that attacked this turn. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)